False tooth for saws



May 4 1926. 1,583,765

W. E. WHITNEY FALSE TOOTH FOR SAWS Filed May 29, 1925 IN VEN TOR.

Vi/Ham EW/Iiin finffMd A TTORNEYS Patented May 4, 1926.

UNITED stains eareurr-oF-rice.

WILLIAM E. WHITNEY, 0F HELMSBURG, INDIANA, ASSIGNOR T0 E. C. ATKINS & COM- PANY, INDIANAPOLIS, INDIANA, CORPORATION OF INDIANA.

FALSE TOOTH FOB SAWS.

Application fll'ed. May 29, 1925. Serial No. 33,632.

2 '0 all whom it may concern:

Be it known that I, WILLIAM E. WHITNEY, a citizen of the United States, residing at I-l'elmsburg, in the county of Brown and State of Indiana, have invented a new and useful False Tooth for'Saws, of which the following is a specification.

My invention relates to improvements in sawsand particularly to means for causing a saw to feed through an automatic sharpening machine in event a tooth on the saw is broken.

One of the objects of my invention is to provide a false tooth to be attached to the saw at the point where the tooth is broken off so that when the saw is automatically fed through the sharpening machine means will be provided at the broken tooth for the feeding mechanism to engage and properly space the saw. 1

For the purpose of disclosing my inventic-n I have illustrated one embodiment thereof in the accompanying drawings in which I A Fig. 1 is a fragmentary elevation showing so much of an automatic sharpener as is necessary for understanding the application of my invention;

Fig. 2 is a side elevation of a saw showing the false tooth in position;

Fig. 3 is a sectional View on the line 3-3 of Fig. 2, and

Fig. 4 is a detail section on the line 4-4 of Fig. 3.

In certain types of automatic saw sharpening machines there is provided, as illustrated in Fig. 1, a grinding wheel -1, the'shaft ofwhich is mounted on a sliding carriage 2, which carriage is adapted to be moved in guideways 3 toward and from the saw 4. The wheel 1 is set at the proper angle for grinding the teeth one at a time, and for the purpose of feeding the saw a reciprocating saw engaging feeder 5 is provided. This feeder has a suitable finger 6 adapted to engage a tooth of the saw and as the carriage is moved in the direction of the arrow feeds the saw one tooth forward. The parts are It sometlmes happens, however, that in.

use one of the teeth will be broken off, in

which event, due to the fact that the saw is fed by the engagement of" the feeding mechanism with the teeth, the feeding mechanism will skip when the broken teeth come mto position and thereby the mechanism will be thrown out of proper synchronism. To prevent this and provide a means at the broken tooth for engagement by the feeding mechanism, I provide a. false tooth 7 which is substantially of the same shape as, the teeth of the saw and is provided with a' slot 8 to receive the unbroken portion of the saw tooth. The false tooth 7 is substantially the same shape as a completed toothof the saw, being provided with the usual rounded throat-9 and the inclined back 10 so that when the tooth is fitted in position at the broken point the false tooth will match up with the remaining teeth.

The tooth is held in position by'means of a set screw 11 which screws through either of the side portions 12 and 13 and abuts against the side of the saw so that the false portion of thetooth and coinoidingtherewith.

'2. As a new article of'manufacture, a false feeding tooth for saws provided with a base portion arranged to straddle the saw at a pointwhere a tooth is broken off, and means for securing said tooth to the saw.

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2 1,583,765 I V r o 3. As a new article of manufacture, a against the saw blade and clamp the tooth f lse feeding tooth for saws adapted to be in position. 1 secured to the saw at a point where a tooth In testimony whereof, I, WILLIAM E. is broken ofi and comprising a member hav- VJHITNEY, have hereunto set my hand at 511g substantially the same contour as the l'lehnsburg, Indiana, this 21st day of May, tooth of the saw provided with 2!, base slotted 1925, A. I). one thousand nine hundred and to receive the saw blade and a screw threadtwenty-five. ed into said base and arranged to abut WILLIAM E. WHITNEY. 

